Question

5:45am - 8:14am
how did ground personnel first learn that flight 11 had been hijacked?
○ a passenger on board flight 11 contacted a family member
○ the terrorists contacted them to make demands
○ flight attendants phoned ground personnel and relayed information
○ foreign voices were overheard in the cockpit

Explanation:

In the case of the hijacking of Flight 11, flight attendants phoned ground personnel and relayed information about the hijacking, which was the first - hand communication that alerted ground staff. Passengers contacting family members was not the first way ground personnel learned, terrorists did not contact to make demands, and foreign voices overheard in the cockpit was not the initial alert mechanism.

Answer:

C. flight attendants phoned ground personnel and relayed information